Abstract
Maize is one of the staple cereal crops in Ethiopia. However, in southern Ethiopia, the productivity of the crop is very low as compared to the average national productivity, which is mainly attributed to poor soil fertility and the use of low yielding varieties. Hence, a field experiment was conducted at Hadero Zuria kebele, southern Ethiopia under supplemental irrigation to investigate the effects of different rates of blended Nitrogen, Phosphorus, Sulphur, and Boron (NPSB) fertilizer on the performance of maize varieties. Treatments involving three varieties of maize (30G19, BH-546, and BH-547) and six rates of NPSB fertilizer (0, 50, 75, 100, 125, and 150) kg ha−1 were tested in RCBD using a factorial arrangement with three replications. Data on crop Phenological, growth, yield, and yield components were collected. The results showed that the blended NPSB fertilizer rates and varieties of maize affected days to physiological maturity, leaf area, leaf area index, hundred kernels weight (HKW), dry biomass yield (DBY), and grain yield (GY). The highest mean values for HKW, DBY, and GY were obtained from the 150 kg ha−1 NPSB rate. Similarly, the highest values for DBY and GY were obtained from the BH-546 variety. Significant differences (P < 0.05) were obtained on days to tasseling, days to silking, and harvest index (HI) due to the interaction effect of NPSB rates and varieties. As the NPSB rates increased from 0 to 150 kg ha−1, HKW and DBY increased consistently from 29.62 to 36.62 g and 31.41 to 43.70 t ha−,1 respectively. Grain yield showed a highly significant and positive correlation with cob length, leaf number, HI, HKW, and DBY. Also, maximized economic profitability was gained at a rate of 150 kg ha−1 NPSB fertilizer. Thus, from this result, the NPSB rate of 150 kg ha−1 with the hybrid maize variety BH-546 could be better for the study area.
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Claims 8
Claim · model-written summary
The highest hundred-kernel weight, dry biomass and grain yield came from the 150 kg/ha NPSB rate.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“The highest mean values for HKW, DBY, and GY were obtained from the 150 kg ha−1 NPSB rate”
Claim · model-written summary
The BH-546 variety gave the highest dry biomass and grain yield.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“the highest values for DBY and GY were obtained from the BH-546 variety”
Claim · model-written summary
Raising NPSB from 0 to 150 kg/ha increased hundred-kernel weight from 29.62 to 36.62 g.
- Treatment
- NPSB rates increased from 0 to 150 kg ha−1e0
- Outcome
- HKWe0
- Direction
- increasede0
- Value
- 29.62 to 36.62 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“As the NPSB rates increased from 0 to 150 kg ha−1, HKW and DBY increased consistently from 29.62 to 36.62 g and 31.41 to 43.70 t ha−,1 respectively”
Claim · model-written summary
Raising NPSB from 0 to 150 kg/ha increased dry biomass yield from 31.41 to 43.70 t/ha.
- Treatment
- NPSB rates increased from 0 to 150 kg ha−1e0
- Outcome
- DBYe0
- Direction
- increasede0
- Value
- 31.41 to 43.70 t ha−,1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“As the NPSB rates increased from 0 to 150 kg ha−1, HKW and DBY increased consistently from 29.62 to 36.62 g and 31.41 to 43.70 t ha−,1 respectively”
Claim · model-written summary
The NPSB rate by variety interaction significantly affected days to tasseling, days to silking and harvest index.
- Treatment
- interaction effect of NPSB rates and varietiese0
- Outcome
- days to tasseling, days to silking, and harvest index (HI)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“Significant differences (P < 0.05) were obtained on days to tasseling, days to silking, and harvest index (HI) due to the interaction effect of NPSB rates and varieties”
Claim · model-written summary
Grain yield was positively and highly significantly correlated with cob length, leaf number, HI, HKW and DBY.
- Outcome
- positive correlation with cob length, leaf number, HI, HKW, and DBYe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“Grain yield showed a highly significant and positive correlation with cob length, leaf number, HI, HKW, and DBY”
Claim · model-written summary
Economic profitability was maximized at 150 kg/ha NPSB.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“maximized economic profitability was gained at a rate of 150 kg ha−1 NPSB fertilizer”
Claim · model-written summary
The authors recommend 150 kg/ha NPSB with hybrid variety BH-546 for the study area.
- Outcome
- the NPSB rate of 150 kg ha−1 with the hybrid maize variety BH-546e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“the NPSB rate of 150 kg ha−1 with the hybrid maize variety BH-546 could be better for the study area”
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